NOTE: The Slash character is not allowed to execute your FFmpeg command
Note: Fill in the two parameter inputs above to build a ready-to-run command for the FFmpeg or FFprobe binary on our processing service; the output filename you type here is the name the server-side run will write to and what the download link below will fetch. Final command is:
The executing process has completed. Command out below:
Convert Files Easily with FFmpeg Online Converter
Need to convert a media file without installing software? This online FFmpeg converter posts your file and command to a hosted processing service that runs the same FFmpeg or FFprobe binary as the command line, then returns the output as a download.
How the server-side FFmpeg pipeline handles your file
FFmpeg Online uploads your file over HTTPS to a hosted processing service, dispatches your ffmpeg or ffprobe command to a server-side worker, streams the console log to the page in real time so you can follow encoding progress, and returns the output as a one-click download. The browser holds the upload form and the command builder; the encoding, transmuxing, or metadata probe runs on the service host, so your device is not CPU-bound. For workflows that must keep the source on-device, run a local FFmpeg install instead.
Command patterns that cover most jobs
Format conversion (MP4 → WebM). -i input.mp4 -c:v libvpx-vp9 -b:v 1M -c:a libopus output.webm - re-encodes to VP9 video and Opus audio for modern browsers.
Trim a segment (keep seconds 10-30). -i input.mp4 -ss 10 -t 20 -c copy output.mp4 - -c copy avoids a re-encode, so the trim is instant.
Extract audio only (MP4 → MP3). -i input.mp4 -vn -c:a libmp3lame -b:a 192k output.mp3.
Resize to 720p. -i input.mp4 -vf scale=1280:720 -c:v libx264 -crf 23 output.mp4 - bicubic scale + quality-targeted H.264 re-encode.
Probe a file before editing. Switch the binary to ffprobe and pass -v quiet -print_format json -show_format -show_streams input.mp4 to get codec, bitrate, duration, and stream metadata as JSON.
Remember: the forward-slash is reserved by this tool's command parser, so express paths without leading slashes and avoid the / separator in filter chains.
FFmpeg vs FFprobe - pick the right binary first
The first dropdown switches between ffmpeg and ffprobe. FFmpeg is the encoder: use it to re-encode (MP4 to WebM), trim, resize, or extract audio - it produces a downloadable output file. FFprobe is the read-only inspector: it returns codec, bitrate, duration, and stream metadata as JSON without producing a download - useful when debugging why a file does not play. Both use the same parameters input shape and the same forward-slash restriction.
Privacy and retention
Files are uploaded over HTTPS to service.us-east-1a.freetool.online and removed shortly after the command finishes (the retention window is reported as web.minsToDelFile at page load). No account required. For on-device compliance requirements, run FFmpeg locally.
Just need a quick format change, not a custom command? All Video Converter covers the common cases (MP4, WebM, MOV, MP3) with a GUI and no command line. For a slideshow video from still images, Video Maker assembles the sequence into MP4 in one click. For an animated GIF, GIF Maker turns short clips into shareable GIFs.
Hosted ffmpeg vs local ffmpeg - which one now? The guide ffmpeg online vs local ffmpeg when each wins covers the decision rule: the hosted service is ideal for one-off conversions; local ffmpeg wins for long-running batches, hardware-accelerated encoding, files that must stay on-device, and files larger than the upload window allows.
Last reviewed: 2026-06-25
MP4 to GIF without an install
Turning a short MP4 clip into a shareable GIF uses the same pipeline as any other FFmpeg job: upload the source, paste the command, and download the result. A practical command for a five-second loop: -i input.mp4 -ss 0 -t 5 -vf "fps=12,scale=480:-1:flags=lanczos" output.gif - -ss and -t pick start and length, fps=12 keeps the file small without looking jerky, and scale=480:-1 resizes the width while preserving aspect ratio. If a click-only flow is enough, GIF Maker handles the same conversion with a GUI; use this page when the source needs a specific trim or frame-rate that the GUI does not expose.
Hosted service, in-browser converter, or local FFmpeg - quick decision
The hosted route (this page) skips the setup cost of a local install or a Docker container - paste the same flags FFmpeg accepts on a command line and the service runs the binary for you. Where the file fits comfortably in browser memory and you only need a lighter conversion, the in-browser HD Video Converter runs FFmpeg.wasm with nothing leaving your device. A multi-hour batch, hardware-accelerated encode, or a file larger than the upload window is still a job for FFmpeg installed locally. Quick rule: arbitrary or chained flags belong here; a single small MP4-to-WebM swap is faster in the browser tool.
How to Use the FFmpeg Online Converter
This FFmpeg online converter is straightforward to use. Here's a quick guide:
- Open the converter tool in your browser on any device.
- Upload the media file you wish to convert by dragging it into the tool or selecting it from your files.
- Choose the output format and customize settings like resolution, bitrate, and frame rate as needed.
- Start the conversion, and once complete, download the processed file to your device.
Benefits of Using This FFmpeg Online Converter
Choosing this FFmpeg online tool comes with several benefits:
- Ease of Use: No need to install FFmpeg or learn complex commands, making it accessible to everyone.
- Extensive Format Support: Convert a wide range of file types, from video and audio to images and more.
- Customizable Settings: Advanced users can modify parameters like bitrate, resolution, and codecs.
- Short Retention: Uploaded files and generated outputs are removed from the processing host shortly after the command finishes (within the
web.minsToDelFilewindow emitted at page load). - Instant Access: Run from any device with a web form - no FFmpeg install on your machine, no signup, and your file is deleted from the service host shortly after the conversion completes.
Frequently Asked Questions
Why Use FFmpeg Online for File Conversion?
FFmpeg is a widely-used, open-source tool for multimedia processing, but it can be complex to set up. This online version offers the same functionality without the hassle of installation, allowing you to convert files instantly.
What File Types Are Supported?
This tool supports numerous file formats, including MP4, AVI, MOV, MP3, WAV, JPEG, and PNG, among others.
Is My Data Secure?
Yes - your file is uploaded over HTTPS to our processing service, used only to run the FFmpeg or FFprobe command you submit, and then removed from the service host shortly after the command finishes (within the retention window emitted as web.minsToDelFile). The session is anonymous (no signup or sign-in is required) and the upload is identified internally by a session id only.
Can I Customize Conversion Settings?
Absolutely. Users can adjust parameters such as resolution, bitrate, frame rate, and codec to suit their specific needs.
Is the FFmpeg Online Converter Free?
Yes, this tool is completely free to use and provides high-quality conversions without any additional costs.
What does this tool do?
It runs an FFmpeg or FFprobe command on your uploaded video or audio file via our processing service. The two binaries differ in role: FFmpeg re-encodes or transmuxes the media, while FFprobe inspects metadata (codec, duration, bitrate, streams) without producing an output file.
What about privacy and command-string limits?
The source file is removed from the processing service shortly after the command finishes; the output is generated for direct download. The forward-slash character is reserved by the parser, so paths and filter chains cannot use the / separator.
Conclusion: Transform Media Files in the Browser with FFmpeg Online
This FFmpeg online converter makes file conversion simple, fast, and accessible from any device. for quick, reliable results without the need for software installations, and get the most out of your multimedia files!